/* ═══════════════════════════════════════════════
   Image Compressor Styles
   Matches existing dark theme
   ═══════════════════════════════════════════════ */

/* Back Link */
.back-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.back-link:hover {
  color: var(--text);
  background: var(--surface-2);
}

/* Compressor Hero */
.compressor-hero {
  min-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 1rem 3rem;
  position: relative;
}

/* Upload Area */
.upload-area {
  width: 100%;
  max-width: 500px;
  min-height: 200px;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-2);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 1.5rem 0;
}

.upload-area:hover,
.upload-area.dragover {
  border-color: var(--red);
  background: var(--surface-3);
}

.upload-content {
  text-align: center;
  padding: 2rem;
}

.upload-icon {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.upload-text {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.upload-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.upload-loading {
  text-align: center;
  padding: 2rem;
}

.upload-loading .loader {
  width: 40px;
  height: 40px;
  border: 3px solid var(--surface-3);
  border-top-color: var(--red);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Quality Control - FIXED TRACK VISIBILITY */
.quality-control {
  width: 100%;
  max-width: 400px;
  margin: 1rem 0;
  text-align: center;
}

.quality-control label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.quality-control label span {
  color: var(--red);
  font-weight: 600;
}

/* Range input - complete styling */
.quality-control input[type="range"] {
  width: 100%;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  outline: none;
}

/* Track (the line) */
.quality-control input[type="range"]::-webkit-slider-runnable-track {
  width: 100%;
  height: 8px;
  background: var(--surface-3);
  border-radius: 4px;
  border: none;
}

.quality-control input[type="range"]::-moz-range-track {
  width: 100%;
  height: 8px;
  background: var(--surface-3);
  border-radius: 4px;
}

/* Thumb (red dot) */
.quality-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--red);
  border-radius: 50%;
  cursor: pointer;
  margin-top: -5px;
  transition: transform var(--transition);
}

.quality-control input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.quality-control input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--red);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

/* Result Area */
.result-area {
  width: 100%;
  max-width: 700px;
  margin-top: 1.5rem;
  animation: fade-in-up 0.5s ease both;
}

.preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.preview-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.preview-card h3 {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  text-align: center;
}

.preview-img-wrap {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--surface-3);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.preview-img-wrap img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.file-size {
  font-size: 0.85rem;
  color: var(--text);
  text-align: center;
  font-weight: 500;
}

.savings {
  font-size: 0.9rem;
  font-weight: 700;
  text-align: center;
  margin-top: 0.25rem;
}

/* Download Button */
.btn-download-compressed {
  display: block;
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-download-compressed:hover:not(:disabled) {
  background: #22c55e;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(34, 197, 94, 0.4);
}

.btn-download-compressed:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* History Section (yeni) */
.history-section {
  margin-top: 2rem;
  width: 100%;
  max-width: 500px;
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.history-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.history-clear {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.7rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.history-clear:hover {
  color: var(--text);
  background: var(--surface-2);
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 200px;
  overflow-y: auto;
}

.history-item {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.history-filename {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.history-savings {
  color: var(--green);
  font-weight: 600;
}

.history-empty {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  padding: 1rem;
}

/* Error Message */
.error-msg {
  color: var(--red);
  font-size: 0.85rem;
  margin-top: 1rem;
  text-align: center;
}

/* Mobile Responsive */
@media (max-width: 600px) {
  .preview-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .upload-area {
    min-height: 160px;
  }

  .upload-icon {
    font-size: 2.5rem;
  }

  .history-filename {
    max-width: 120px;
  }
}
/* ── Mobilde Header Düzenlemesi (Ana Sayfa yazısı kaybolmasın) ── */
/* Mobilde Ana Sayfa linkini gizle */
@media (max-width: 600px) {
  .back-link {
    display: none;
  }
}
/* ─── INFO SECTION — tüm sayfalara yapıştır ────────────────────────── */
.info-section {
  width: 100%;
  padding: 4rem 1.5rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.info-inner {
  max-width: 900px;
  margin: 0 auto;
}

.info-inner h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 2rem;
  color: var(--text);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.info-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.info-card:hover {
  border-color: var(--red);
  background: var(--surface-3);
  transform: translateY(-3px);
}

.info-icon {
  font-size: 1.75rem;
  line-height: 1;
  margin-bottom: 0.15rem;
}

.info-card h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  line-height: 1.3;
}

.info-card p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

/* ─── SSS / FAQ Section ──────────────────────────────────────────────── */
.faq-section {
  padding: 4rem 1.5rem;
}

.faq-inner {
  max-width: 720px;
  margin: 0 auto;
}

.faq-inner h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.faq-item {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 0.6rem;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: var(--red);
}

.faq-item summary {
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--red);
  transition: transform 0.2s ease;
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-body {
  padding: 0 1.25rem 1rem;
}

.faq-body p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ─── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .info-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.85rem;
  }
}

@media (max-width: 480px) {
  .info-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.7rem;
  }
  .info-section {
    padding: 2.5rem 1rem;
  }
  .info-inner h2,
  .faq-inner h2 {
    font-size: 1.25rem;
  }
  .info-card {
    padding: 1rem 0.75rem;
    border-radius: 12px;
  }
  .info-icon { font-size: 1.5rem; }
  .info-card h3 { font-size: 0.78rem; }
  .info-card p { font-size: 0.7rem; }
}